在介绍著名的孙子定理和欧拉函数的基础上，提出了一种新的口令验证方案。

A new password authentication scheme is proposed after introducing the famous Sunzi theorem and Euler function.

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返回口令验证示例，包含ChangePasswordAction类的项目有图3所示的目录结构。

Returning to the password-verification example, the project that contains the ChangePasswordAction class has the directory structure shown in Listing 3.

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最后提出一种基于公钥密码和中国剩余定理的动态口令验证方案，进行方案安全性及性能的分析。

A dynamic password authentication which is based on the Chinese remainder theorem and RSA public-key cryptography are represented. Finally analysis is made on the scheme security and feasibility.

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